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The influence of raw materials on the appearance of plastic tray

  The influence of blister raw materials on the appearance of blister tray when the blister sheet is made into a blister tray by hot pressing, the definition of details is explained as the accuracy of the mold profile molding copy standard is very small, the contact of fillet radius can see the surface and surface structure of the mold (leather and wood grain).


  The clarity of detail is determined by the following factors: thickness of plastic sheet, forming temperature of plastic sheet, forming temperature of vacuum forming force of injection molding mould, temperature of die exhaust system, thickness direction type LED extended high impact polystyrene, polypropylene, polyethylene, ABS and PPE are molding products, for clarity, good plastics. Some achievements of PC, APET and PVC can only get enough definition under certain conditions.


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  The selection of plastic tray has high molding temperature and accuracy of details. The only crystalline plastic, such as APET tablets, is cardiopulmonary exercise test. If the thickness of the material is greater than 4mm, it will become thinner after the molding to get a better definition of the details, then we must have enough material heating. If necessary, you can reduce the heating intensity and long heating period. The greater the force formed, the easier it is to be high-definition.


  Please note: many plastic sheet, molding machine force (such as vacuum molding), to make up for the higher molding temperature. The above standards also apply to drawings in this area that are 4:1 or form a height to width ratio of 1:2. In high temperature, larger drawing, it is difficult to get uniform wall thickness. The vacuum forming mould has higher temperature and better detail clarity. In press forming, the mold temperature is increased by forming pressure to make up for the deficiency. This method is often used to shape planned sheets that cannot be cold moulded for better product details.


  If the table is the surface forming of the structural parts of the project, the importance of making a good mold mold must be heated to a glass transition temperature close to the material. A well vented mold can be defined in more detail. When the air is wrapped in the plane of the mold or structure, the forming structure is shallow in depth and smooth in surface. A larger overall draft is more conducive to high definition. Vacuum molding and plastic molding will remain flexible and not fully plasticized, with the characteristics of the rubber sheet. In order to make the details of the plastic tray clearer, increase the overall drawing, and increase the molding force


  For more details, please consult Dongguan zhanrui packaging products Co., Ltdwww.zarek.com.cn

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